Catalan expeditionin 2005measured accurately The height of 5,565 m (18,258 ft) was calculated in 2005 by a team of researchers conducting a modern GPS surveyhttp://en.wikipedia.org/wiki/Semo_La
At 5,565 metres (18,258 ft), Semo La may be the highest vehicle-accessible pass in the world. It is the highest that has been measured accurately.